2(n-6)+2n=72

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Solution for 2(n-6)+2n=72 equation:


Simplifying
2(n + -6) + 2n = 72

Reorder the terms:
2(-6 + n) + 2n = 72
(-6 * 2 + n * 2) + 2n = 72
(-12 + 2n) + 2n = 72

Combine like terms: 2n + 2n = 4n
-12 + 4n = 72

Solving
-12 + 4n = 72

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '12' to each side of the equation.
-12 + 12 + 4n = 72 + 12

Combine like terms: -12 + 12 = 0
0 + 4n = 72 + 12
4n = 72 + 12

Combine like terms: 72 + 12 = 84
4n = 84

Divide each side by '4'.
n = 21

Simplifying
n = 21

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